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Diadasia diminuta (Cresson, 1878)


Scientific Name: Diadasia diminuta (Cresson, 1878)

Common Name: Globe Mallow Chimney Bee


Melissodes diminuta Cresson, 1878: 215 [♂].

     Lectotype ♂, designated by Cresson (1916: 117), USA. Colorado, by Morrison [ANSP no. 2357].

Melissodes apacha Cresson, 1878: 217 [♀]. Synonymy by Cockerell (1900: 363).

     Lectotype ♀, designated by Cresson (1916: 111). USA, Texas [ASNP no. 2338].


Taxonomic notes: Patton (1879: 476) was the first to assign this to genus Diadasia Patton. Cockerell (1900: 363) made the synonymy of M. apacha Cresson, 1878 under D. diminuta (Cresson, 1878), but later (Cockerell 1905: 744) indicated that the type material of apacha had been preserving liquid that may have altered its appearance, resulting it its continued separation.

DNA Barcode Index Number (BIN): BOLD:AAB5138

BiologyDiadasia ochracea is considered an oligolege of Sphaeralcea (Malvaceae). 

Distribution in Canada: Crawford 1912 [AB]; Gibson 1919 [BC]; Lutz and Cockerell 1920 [AB]; Hurd 1979 [BC]; Sheffield et al. 2014 [AB]; Sheffield and Heron 2019 [BC]; Gibbs et al. 2023 [MB]; BOLD [BC, AB, SK].


Hurd PD (1979) Superfamily Apoidea. In: Krombein KV, Hurd Jr PD, Smith DR, Burks BD (Eds) Catalog of Hymenoptera in America North of Mexico. Smithsonian Institution Press, Washington, 2735 pp.

Sheffield CS, Frier SD, Dumesh D (2014) The bees (Hymenoptera: Apoidea, Apiformes) of the Prairies Ecozone, with comparisons to other grasslands of Canada. In: Giberson DJ, Cárcamo HA (Eds) Arthropods of Canadian Grasslands (Volume 4): Biodiversity and Systematics Part 2. 4. Biological Survey of Canada, Ottawa, 479 pp. [ISBN 978-0-9689321-7-9].

Crawford JC (1912) Notes on some Canadian bees. The Canadian Entomologist 44(12): 359-360.

Gibbs J, Hanuschuk E, Miller R, Dubois M, Martini M, Robinson S, Nakagawa P, Sheffield CS, Onuferko T (2023) A checklist of the bees (Hymenoptera: Apoidea) of Manitoba, Canada. The Canadian Entomologist 155: E3.

Sheffield CS, Heron JM (2019) The bees of British Columbia (Hymenoptera: Apoidea, Apiformes). Journal of the Entomological Society of British Columbia 115: 44-85.

Lutz FE, Cockerell TDA (1920) Notes on the distribution and bibliography of North American bees of the families, Apidae, Meliponidae, Bombidae, Euglossidae, and Anthophoridae. Bulletin of the American Museum of Natural History 42(15): 491-641.

Cresson ET (1878) Descriptions of new species of North American bees. Proceedings of the Academy of Natural Sciences of Philadelphia 30: 181-221.

Patton WH (1879) Generic arrangement of the bees allied to Melissodes and Anthophora. Bulletin of the United States Geological and Geographic Survey 5(3): 471-479.

Gibson A (1919) The entomological record, 1918. Annual Report of the Entomological Society of Ontario 49: 97-123.

Cockerell TDA (1900) Notes on New Mexico bees. The Canadian Entomologist 32(12): 361-364.

Cockerell TDA (1905) Diadasia Patton; a genus of bees. The American Naturalist 39(466): 741-745.

Sociality: Solitary
Nesting: Ground
Pollen Specialization: Narrow Oligolecty
Wintering Stage: Mature Larva

Crop Preference: Not Available
Non Crop Preference: Escobaria vivipara, Sphaeralcea coccinea

Distribution: Alberta, British Columbia, Manitoba, Saskatchewan
Ecozone: Montane Cordillera, Prairie, Western Interior Basin

Distribution Map